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Stitch

Stitch

AI-powered open-source CLI by Stitch for local CI simulation and failure fixing. Uses Claude Code to automatically resolve issues without API keys or configuration.

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What is Stitch?

Stitch is an open-source, local-first CLI tool that simulates your CI pipeline on your machine and uses AI to automatically fix failures. It parses your existing CI config (like .github/workflows/ci.yml or .gitlab-ci.yml), runs jobs locally in seconds, and hands any errors to an AI agent (Claude Code or OpenAI Codex) that investigates, patches, and re-tests until green. No API keys, no config files, and no broken PRs pushed to remote.

Application scenarios

  • Pre-push CI validation

    Run your full CI pipeline locally before pushing to avoid breaking the remote branch.

  • Fixing lint errors and type mismatches

    Catch and auto-fix code quality issues that slip through code review.

  • Broken test repair

    Automatically diagnose and patch failing tests using AI context from the stack trace.

  • Continuous local validation

    Use Watch Mode to re-run CI jobs automatically as you edit files.

  • Infrastructure job filtering

    Skip deploy, publish, and infra jobs automatically so you only run what matters locally.

  • Rapid iteration without remote queues

    Get feedback in seconds instead of waiting for cloud CI runners.

Core Features

  • Zero config

    Uses your existing `.gitlab-ci.yml` or GitHub Actions config—no setup, no rewrite, no extra YAML.

  • Local-first execution

    Runs jobs on your machine with Docker, timeouts, and isolation; results stream into a live TUI.

  • AI-powered auto-fix

    Failed jobs are handed to Claude Code or OpenAI Codex, which investigates, edits files, and re-runs up to 3 attempts before escalating.

  • Pluggable AI agents

    Supports Claude Code or OpenAI Codex using your existing subscription—zero new API keys to manage.

  • Interactive TUI

    Live terminal UI with progress tracking, job status, and driver activity as Stitch works.

  • Watch Mode

    Continuously re-runs CI jobs when files change for real-time validation.

  • Smart job filtering

    Auto-classifies and skips deploy, publish, and infra jobs—only runs what's relevant locally.

  • Reversible patches

    Every AI patch lands in an isolated commit; `git reset` takes you back exactly where you were.

  • Full local privacy

    The agent reads, runs, and patches entirely on your machine—no code is shipped anywhere without your authorization.

Target users

Developers and DevOps engineers who want to catch CI failures before pushing, reduce remote pipeline queue times, and automate the tedious loop of debugging and patching broken tests or lint errors. Teams using GitHub Actions or GitLab CI will benefit most.

How to use Stitch?

Run npx stitch-agent run in your terminal from the root of your repository. Stitch automatically reads your CI config, runs jobs locally, and hands failures to the AI agent for patching. No sign-up or API key configuration required—just use your existing Claude Code or OpenAI Codex subscription.

Effect review

Stitch delivers exactly what it promises: a local, transparent CI simulation loop that auto-fixes failures using AI. The zero-config approach and local-first design eliminate the friction of setting up remote runners or managing API keys. The live TUI and Watch Mode make it practical for daily development, while the reversible patches give you full control over changes. For teams tired of long CI queues and manual debugging, Stitch is a pragmatic tool that turns a broken pipeline into a nearly instant fix cycle.

Frequently Asked Questions

What is Stitch?
Stitch is an open-source CLI tool that simulates CI locally and uses AI (Claude Code) to automatically fix failures without requiring API keys or configuration.
Does Stitch require any API keys?
No, Stitch works without any API keys or configuration. It uses Claude Code under the hood to resolve issues automatically.
How does Stitch fix CI failures?
Stitch runs your CI pipeline locally, detects failures, and leverages Claude Code to analyze and automatically apply fixes to your code.
Is Stitch free to use?
Yes, Stitch is open-source and free to use. You can download and run it without any cost.
What programming languages or tools does Stitch support?
Stitch is language-agnostic and works with any CI pipeline that can run locally, supporting a wide range of languages and frameworks.
Can I use Stitch with existing CI configurations?
Yes, Stitch is designed to work with your existing CI configurations and requires no changes to your setup.

Stitch - AI Tool Detail

AI-powered open-source CLI by Stitch for local CI simulation and failure fixing. Uses Claude Code to automatically resolve issues without API keys or configuration.

Category：Agents

Visit Link：https://stitch-agent.dev/

Tags：cli、open-source、ci-simulation、claude-code、failure-fixing